| A | B |
|---|
| weathering | the process that breaks down rock and other substances at Earth's surface. |
| erosion | the movement of rock particles by wind, water, ice or gravity. |
| mechanical weathering | type of weathering in which rock is physically broken into peices is called. |
| abrasion | rock particles carried by wind, water and ice can wear away rocks in the process called. the wearing of rock by a grinding action. |
| ice wedging | water expands when it freezes and acts as a wedge is called. |
| chemical weathering | produces rock particles that hve a different mineral makeup from the original rock. |
| Water | the most important agent of chemical weathering. |
| oxygen | is an important cause of chemical weathering. |
| oxidation | iron combines with oxygen in the presence of water in a process called. |
| carbonic acid | another gas found in air, carbon dioxide, combines with rainwater to form. |
| acid rain | causes very rapid chemical weathering. |
| rock and climate | the most important factor that determines the rate in which weathering occurs are. |
| permeable | means that it is full of air spaces that allow water to seep through it. |
| sediment | material moved by erosion is. |
| deposition | when the agents of erosion lay down sediment. It changes the shape of the land. |
| gravity | the force that moves rock and other materials downhill. causes mass movement |
| mass movement | any one of the several processes that move sediment downhill. It can be fast or slow. |
| landslides | occurs when rock and soil slide quickly down a steep slope. most destructive type of mass movement is a. |
| mudslides | the rapid movement of a mixture of water, rock and soil. the amount of water can be as high as 60 percent. |
| slump | mass movement of a mass of rock and soil suddenly slips down a slope in one large mass. |
| creep | very slow downhill movement of rock and soil. It is slow that you can barely notice it, like a telephone pole. |
| energy | the ability to do work or cause change. |
| potential energy | is energy that is stored and waiting to be use later. |
| kinetic energy | is energy an object has due to its motion |
| load | the amount of sediment that a river carries it its. |
| friction | the force that one surface exerts on another when the two rub against each other. |
| turbulence | water moves every which way in a type of movement called. |
| glacier | any large mass of ice that moves slowly over land. |
| valley glacier | a long, narrow glacier that forms when snow and ice build up high in a mountain valley. |
| ice ages | time in the past, continental glaciers have covered large parts of Earth's surface are known as. |
| plucking | as a glacier flows over the land, it picks up rocks in a process called. |
| till | mixture of sediments that a glacier deposits directly on the surface is called. |
| moraine | the till deposited at the edges of a glacier forms a ridge called a. |
| kettle | is a small depression that forms when a chunk of ice is left in glacial till. |
| continental glacier | a glacier that covers much of a continent or larger island |
| waves | the energy in waves comes from _ that blows across the water's surface. |
| beach | As waves reach the shore, they drop the sediment they carry creating a |
| spit | one result of longshore drift is the formation of a |
| wind | by itself is the weakest agent of erosion. |
| deflation | the process by which wind removes surface materials. |
| sand dune | deposit of wind blown sand |
| loess | this fine, wind deposited sediment |
| longshore drift | process in which beach sediment moves down a beach with the current is called. |
| beach | an area of wave washed sediment along a coast is called. |
| sea cave | landforms created by wave erosion. |
